Pest identification
What's eating my chinese premna?
Aphids
Signs: Sticky honeydew on leaves, distorted or curled new growth, yellowing foliage on young shoots
Control: Spray with water or insecticidal soap; introduce natural predators; remove heavily infested growth promptly
Spider mites
Signs: Fine stippling on leaves, yellowing, and webbing on undersides of foliage during hot, dry periods
Control: Increase humidity; rinse foliage thoroughly with water; apply neem oil or miticide if infestation persists
Scale insects
Signs: Waxy shells on bark and branches; honeydew and sooty mold; gradual weakening of affected branches
Control: Remove manually with a soft brush; apply horticultural oil or systemic insecticide; inspect bonsai monthly
Keep chinese premna pest-free
Healthy plants resist pests best. Get the basics right:
Chinese Premna pests — FAQ
What is eating my chinese premna?
Chinese Premna bonsai is most often attacked by aphids, spider mites, and scale insects, particularly when grown in sheltered outdoor or indoor conditions. Fungus gnats can trouble potted specimens. Good drainage, airflow, and routine inspection of new growth prevent most infestations from establishing.
How do I get rid of aphids on chinese premna?
Sticky honeydew on leaves, distorted or curled new growth, yellowing foliage on young shoots Spray with water or insecticidal soap; introduce natural predators; remove heavily infested growth promptly
How do I get rid of spider mites on chinese premna?
Fine stippling on leaves, yellowing, and webbing on undersides of foliage during hot, dry periods Increase humidity; rinse foliage thoroughly with water; apply neem oil or miticide if infestation persists
How do I get rid of scale insects on chinese premna?
Waxy shells on bark and branches; honeydew and sooty mold; gradual weakening of affected branches Remove manually with a soft brush; apply horticultural oil or systemic insecticide; inspect bonsai monthly